The state of Oklahoma is served by the following area codes:
Area code | Year created | Parent NPA | Overlay | Numbering plan area |
---|---|---|---|---|
405 | 1947 | – | 405/572 | Central Oklahoma, including Oklahoma City |
572 | 2021 | 405 | ||
918 | 1953 | 405 | 539/918 | Northeastern Oklahoma, including Tulsa |
539 | 2011 | 918 | ||
580 | 1997 | 405 | – | Western and southern Oklahoma |